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| author | Christian Grothoff <christian@grothoff.org> | 2022-05-02 20:51:34 +0200 |
|---|---|---|
| committer | Christian Grothoff <christian@grothoff.org> | 2022-05-02 20:51:34 +0200 |
| commit | 7ebdac0a8bccd6842382376653403cd3d82ffab0 (patch) | |
| tree | fd4d9aa0e2bb444de84941857cfd184df93965e4 /src/exchangedb | |
| parent | 0a7b75b2cf9f5994a33b2edd93158319569e4535 (diff) | |
-investigate FIXME
Diffstat (limited to 'src/exchangedb')
| -rw-r--r-- | src/exchangedb/plugin_exchangedb_postgres.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/exchangedb/plugin_exchangedb_postgres.c b/src/exchangedb/plugin_exchangedb_postgres.c index 644b9f5ca..aa4066e6f 100644 --- a/src/exchangedb/plugin_exchangedb_postgres.c +++ b/src/exchangedb/plugin_exchangedb_postgres.c @@ -2198,10 +2198,11 @@ prepare_statements (struct PostgresClosure *pg) ",amount_frac" ",recoup_timestamp" ",recoup_uuid" - " FROM recoup" - // FIXME: suboptimal sub-query here: crosses shards! - // MAYBE: replace reserve_out_serial_id with - // reserve_pub and use new reserve_out_by_reserve table? + " FROM recoup rcp" + /* NOTE: suboptimal JOIN follows: crosses shards! + Could theoretically be improved via a materialized + index. But likely not worth it (query is rare and + number of reserve shards might be limited) */ " JOIN reserves_out ro" " USING (reserve_out_serial_id)" " JOIN reserves" |